Gastropoda - Cerithioidea - Siliquariidae
Alternative spelling: Agathirses
Parent taxon: Tenagodus according to J.-M. Pacaud and J. Le Renard 1995
See also Ladd 1972 and Sepkoski 2002
Sister taxa: Tenagodus (Pyxipoma), Tenagodus (Tenagodus), Tenagodus anguina, Tenagodus bajaensis, Tenagodus californiensis, Tenagodus cossmani, Tenagodus granti, Tenagodus obtusiformis, Tenagodus obtusus, Tenagodus occlusus, Tenagodus sowerbyi, Tenagodus terbellus, Tenagodus vitis, Siliquaria triadica, Siliquaria modesta, Siliquaria cariboea, Siliquaria parva, Siliquaria senex, Siliquaria biparitita
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution:
• Miocene of New Zealand (1 collection)
• Eocene of France (2), United States (1: Texas)
Total: 4 collections each including a single occurrence